What is Cause: Definition and 572 Discussions

Causality (also referred to as causation, or cause and effect) is influence by which one event, process, state or object (a cause) contributes to the production of another event, process, state or object (an effect) where the cause is partly responsible for the effect, and the effect is partly dependent on the cause. In general, a process has many causes,
which are also said to be causal factors for it, and all lie in its past. An effect can in turn be a cause of, or causal factor for, many other effects, which all lie in its future. Some writers have held that causality is metaphysically prior to notions of time and space.Causality is an abstraction that indicates how the world progresses, so basic a concept that it is more apt as an explanation of other concepts of progression than as something to be explained by others more basic. The concept is like those of agency and efficacy. For this reason, a leap of intuition may be needed to grasp it. Accordingly, causality is implicit in the logic and structure of ordinary language.In English studies of Aristotelian philosophy, the word "cause" is used as a specialized technical term, the translation of Aristotle's term αἰτία, by which Aristotle meant "explanation" or "answer to a 'why' question". Aristotle categorized the four types of answers as material, formal, efficient, and final "causes". In this case, the "cause" is the explanans for the explanandum, and failure to recognize that different kinds of "cause" are being considered can lead to futile debate. Of Aristotle's four explanatory modes, the one nearest to the concerns of the present article is the "efficient" one.
David Hume, as part of his opposition to rationalism, argued that pure reason alone cannot prove the reality of efficient causality; instead, he appealed to custom and mental habit, observing that all human knowledge derives solely from experience.
The topic of causality remains a staple in contemporary philosophy.

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  1. Q

    Are *two* external forces always required to cause rotation?

    As the title says, can there be any rotation if only one force is applied to an object at rest. For instance, if I had a rod laying flat on a frictionless surface, and I pushed one end, am I correct to say that Newton's second law says that all of that force goes into acceleration the center of...
  2. J

    Is electrostatics the cause of radio waves?

    That is probably a badly worded question but I understand electrostatics and I want to send simple but efficient radio signals. If I switch on a strong charge in one place it'll effect a charge away from it depending on "Coulomb's law". How is this equation expanded to explain more efficient...
  3. K

    Why does reflection of EM waves not also cause transmission?

    I understand that reflection of EM waves is the electrons on the surface of an object being caused to oscillate, and transmission is the electrons all the way through the object being caused to oscillate. Why, in reflection, when the electrons on the surface of an object are caused to...
  4. morrobay

    Cause Of Virgin Galactic Rocket Explosion ?

    Carolynne Campbell, a rocket propulsion expert based in the Netherlands said that multiple warnings about the spacecraft s motor and fuel had been issued to Virgin since 2007. " I warned them that the rocket motor was potentially dangerous " Her warnings were related to the nitrous oxide and...
  5. K

    Why Do Electrons Have Charge and What Dictates These Fundamental Properties?

    Why does an electron have a charge? Why does the thing which gives an electron charge give an electron charge? Does everything have a cause? How far can we go giving things causes? Do some things happen 'just because'?
  6. K

    Why does compression of a nerve cause any kind of feeling at all?

    Is it because the charges in the nerve are being pushed away from the compressed area, thus sending electrical signal along the nerve? Why was my post moved from physics forum to biology forum? This question could be classified as both physics and biology as I am asking about charges. What's...
  7. jerromyjon

    Exploring the Causes of Red Shift in Cosmology

    Does the expansion of space cause cosmological red-shift or does EM red-shift cause space to expand?
  8. W

    Are there paid internships in research for good causes in undeveloped countries?

    Hello, Does anyone know if any companies working for good causes (water filters, disease control, agricultural improvements) in undeveloped countries have paid internships for the summer (if not paid, at least room and board). Actually I'll even take good unpaid internship opportunities. I'd...
  9. Greg Bernhardt

    Cause of ALS is found, Northwestern team says

    What do you think? http://www.chicagotribune.com/lifestyles/health/ct-met-northwestern-als-breakthrough-20110822-story.html
  10. N

    MHB Determining critical values which cause multi-solutions and instability

    I have the motion of a forced spring: $$x'' + \kappa x' + x - x^3 = \varGamma \cos(\omega t) \ \ \cdots \ \ (1)$$ and I am investigating the stability of its solutions with forcing period $T = \frac{2\pi}{\omega}$. I am given the asymptotic radius of the solutions: $$R_0(\kappa,t,\omega) =...
  11. F

    Flourescence and self-absorption cause shift in wavelength

    Hello Forum, I understand how fluorescence works: there is an absorption spectrum and an emission spectrum. The two spectra are shifted relative to each other in the sense that the absorption peak wavelength is different from the emission peak wavelength (Stokes shift). That said, fluorescent...
  12. avito009

    Can mutations cause ionic bonding?

    When an object is exposed to radioactive substance then ionising radiation is released. So a mutation can be caused due to radiation but does the object exposed to radioactive substance form an ionic bond? If so how? I heard ionic bond can occur only between a metal and a non-metal.
  13. R

    How torque and friction cause wheel to roll

    I apologize if this question has been answered before, but I did not find the explanation that I needed. If a torque is applied to a wheel situated on a frictional surface, what forces cause the wheel to roll? I know that if P is the contact point, the static frictional force counteracts...
  14. S

    Why does a pressure drop in a pipe cause a force on the pipe?

    Hi, I just started a course in drilling and the first chapter is about various situations where pressure drops in the drill string (pipe) causes forces on the pipe. I understand that a pressure drop due to friction causes a downward force on the pipe. The fluid is "pulling" the pipe down...
  15. L

    Particle Spin - how to cause change to direction

    Everywhere I read about the angular momentum / spin of electrons and how a 1/2 spin particle has a unique characteristic that you need to turn it 720 degrees in order to get it turned back to where it was before you started turning it. How exactly do people "turn" an electron in this fashion...
  16. Jackson Lee

    Does plucking one point on the string really can cause standing wave?

    I was teaching myself standing wave's chapter. It is said in the book that when plucking in the center of the string, it will cause two traveling waves of different directions, one left, one right. Then both of them will reach ends of string and invert back. Before they encounter at the center...
  17. Tranceform

    What causes a radiometer to spin in bright light?

    Homework Statement The photograph shows a device called a radiometer. The four regular panels are black on one side and shiny like a mirror on the other side. In bright light, the panel arrangement spins around in a direction from the black side of a panel toward the shiny side. Do photon...
  18. W

    Discover Tab for a Cause: A Charitable Way to Browse the Web!

    Greetings all. Yesterday I was introduced to Tab for a Cause through Nerdfighteria. Tab for a Cause is a browser extension which raises a small amount of money for charity every time you open a new tab. It sets itself as your new tab page and provides widgets and such. Between 1/10th and 1/3rd...
  19. S

    Three diffrent frequency cause occurance of beat

    my ans is f Y = 260hz. but the ans is f Y= 252hz . am i wrong? why? Since X is 256Hz., when sounded with Y 4 beats are produced, so Y is either sounding at 260 or 252Hz (+-4Hz). When Z is sounded with X, 8 beats are heard, so Z is either 264 or 248Hz.(+-8Hz). my fZ is (264Hz.) now the f Y...
  20. Q

    What is the cause of friction exactly?

    I've read a similar thread, but I believe I have something extra to ask, so please bear with me. I've been thinking about friction(qualitatively) for some time now. I've not got a satisfactory explanation about the nature of the frictional force yet. My physics professor says its due to crests...
  21. N

    Does Cosmic inflation cause spacetime to move?

    I've thought about this a lot and have tried to find the answer but have been unsuccessful. In the event of the big bang did it inflate through spacetime without effecting it other than warping by mass or did it actually cause the spacetime to flow or move outwards with the inflation?
  22. Medicol

    Cause of gray hair and actual ageing

    I have learned that a catalase increase may help feed peroxide and reduce gray hair but on the other hand human ageing states that its heme-Fe increases automatically overtime. These two "facts" really confuses me. Could you help me explain this ? Thank you.
  23. I

    How does Kicking cause modelocking in femtosecond laser & shadowgraphy

    Three questions, In a femtosecond laser, or any laser for that matter, how is a pulse generated from noise? how do the phases match up? we use modulation for this? if so, what kind? Also, how does a laser get self mode locked when you push it or 'kick' it from the back? what does this...
  24. W

    What would cause sudden change in evaporation chamber behavior?

    Hello all, I use an evaporation chamber at my lab every day. Basically, put some substance in the chamber, close it, bring it down to vacuum, and pump enough current through it to vaporize it where it deposits on a substrate. I've been using 175A to create a deposition rate of about 1...
  25. Maxo

    Does an indoor swimming pool cause a room to be "steamed up"?

    Let's say we have two rooms in a mansion that have the same temperature. One of these rooms contains an indoor swimming pool. If the temperature outside cools down, will the room with the swimming pool "steam up"? Or will it rather be the other room without pool that does that? I'm thinking the...
  26. D

    Can conservation of angular momentum cause rotational phase shift?

    So, I'm trying to study phase shift in an unbalanced rotating system (where "phase shift" means the resulting response of orbital motion lags behind in time/position relative to the force that's causing it) I know that conservation of angular momentum applies ideally in a closed system...
  27. P

    Can Having Enough Bends in Circuit Conductors Cause Energy Loss?

    I am aware that when charged particles accelerate or decelerate, the particle will emit a certain amount of radiation. But since a charged particle will accelerate any time it goes around a bend in a circuit, wouldn't it radiate some energy when it goes around the bend? I thought that giving...
  28. Manish7

    How Atherosclerosis cause endothelial injury?

    Atherosclerosis causes accumulation of lipids (cholesterol, cholesterol esters) within the intima of major vessels."Robbins and Cotran, 8 edi." says it is due to endothelial injury rather endothelial dysfunction,which leads to increased permeability, inc. expression of adhesion molecules...
  29. Manraj singh

    Why Does Light Change Its Path When Speed Alters in Different Media?

    Yeah sure, change in speed of light as it travels from one medium to another. But why does it affect the path? I mean, shouldn't the light ray just go in the same direction with a different speed? Why does it have to change its path?
  30. MattRob

    Alcubierre Metric: York Time Cause and Effect

    So, there's a paper here that I'm a bit confused about. On pages 3 and 4, it talks about energy density magnitude and York time. What I'm a bit confused about, is in the article that linked me to it, the scientist makes mention of eventually generating negative vacuum energy. However, from...
  31. M

    Magnetic field and current cause a force

    Hi, For question 37 (attached), I found the length of hypotenuse to be ~0.21m by letting a2 + b2 = c2 which is simple enough. Then I let Fb = i L x B and since L and B are perpendicular this gives a force with magnitude ~0.3 N. Now, I realize the question is asking to find the respective force...
  32. Greg Bernhardt

    Sleep loss may cause brain damage

    Shift workers beware: Sleep loss may cause brain damage, new research says http://www.cnn.com/2014/03/19/health/sleep-loss-brain-damage/index.html?hpt=hp_t2
  33. J

    What is the Cause of Nearsightedness?

    I have become nearsighted after too much reading/computer staring. And obviously it is because my eyes are spending most time focused at <=80cm distance. Now my physics teacher said when in optics that nearsightedness was caused by the lens being permacurved, so that it could not flex back to...
  34. G

    Can Gravity Fields really cause Time-Dilation-Effects inside of them?

    Hi folks! I'll start by admiting that I'm a cockroach compared to Einstein or Hawking, and I think that due to Hawking's great mind, maybe he wrote the book in a way he found conspicuous. But I don't have Hawking's IQ, and for me is definitely harder to understand the concept of "Time...
  35. W

    What could cause these differences in torque, power and BSFC?

    Ive been doing some engine testing at university and have created some torque, power ad BSFC curves. The engine used is a JCB 4.4l twin turbo diesel engine. I then compared to my results to the manufacturers graphs and got these. I need some ideas on what could cause the difference in torque...
  36. L

    Does swallowing cause satiation?

    I was just thinking about food and realized the taste of food doesn't really mean much to us. Just putting food in our mouths, tasting it for however long we want, and then spitting it out, we don't get much pleasure out of that. The majority of the pleasure of eating tasty food comes from...
  37. P

    The Higgs field (mechanism) is the cause of fictitious forces?

    Newton second law of motion states that acceleration is produced when a force acts on a mass. The Higgs field (mechanism) is the cause of fictitious forces?
  38. B

    Why does a warm bath cause the anal sphincter to stop spasming?

    Physicians recommend that people with anal fissures take a lot of warm baths. Physicians say that if a person's anal sphincter is spasming (which causes a great deal of pain), a warm bath will cause the anal sphincter to stop spasming. If I did not post this sentence, someone would...
  39. B

    How does an anal fissure cause the anal sphincter to spasm?

    I have an anal fissure. When I have a bowel movement, I don't feel any pain while I'm having the bowel movement or even a few minutes later. I start to feel pain about 30 minutes after the bowel movement. I have researched this on the internet, and I have discovered that my delayed pain after...
  40. B

    Mass is not the cause of gravity?

    If the effects of gravity are relative to an objects stress-energy-momentum tensor, is the equation: Fg = Gm1m2/r^2 fundamentally flawed since it is based off the mass of the two objects? Ignoring the "gravity isn't a force" (I understand that it is what is observed due to curves in spacetime)...
  41. G

    Voltage as the cause of motion of charges?

    Voltage as the "cause of motion" of charges? I know voltage is defined as the potential energy difference per unit charge between two points A and B. In textbooks they often describe this potential difference as the "cause" of current through a wire. Further, if this potential difference gets...
  42. C

    Max torque on a couple to cause slip

    So I've been spinning my wheels (I guess I should say slipping, haha) on this problem we've been having We have a coupling intended to transfer torque: One side of the coupling is a smaller insert that slides inside of a larger nut. The insert has male threads on one side and the nut has...
  43. W

    Medical What Might Cause Morgellan's Disease?

    If you are not familiar with Morgellan's, it is a disease where lesions appear on the skin, and then weird fibers begin to grow out of the lesions. Some in the medical community seem to think it's a hoax or a self-induced condition due to scratching and such, and that the fibers are just...
  44. J

    Does Cold air cause more Air Resistance?

    I know that Cold Air is more dense than the warm air, so for example: If a car was accelerating facing a hot air, it will face less air resistance. But if it was facing a Cold air, it will face more air resistance because the cold air contain more mass per volume for each particle. It will face...
  45. G

    What could cause this light effect?

    Not sure if it is the right forum, but anyways, In this image, the sun is to the left. What causes the glow at the middle?
  46. M

    Can RF Sputtering cause the the ejected target to ionise?

    Hello, I am currently working on sputtering method for thin film deposition of III-Nitrides. The target used was a gallium nitride (GaN) plate and plasma generation was achieved by radio frequency (RF). After running the sample through phase analysis, interestingly a gallium oxide (Ga2O3)...
  47. Q

    Minimum daily whole-body X-ray dose to cause radiation poisoning?

    Hi, If I were given a whole-body X-ray dose daily for many days (a year for example) What would be the highest dosage per day which would result in an increased cancer risk but no noticeable signs of radiation poisoning by the end of the year, or during? And also, I've read that a 2KRad dose...
  48. D

    X-ray's can cause demagnetization?

    I found this my mistake, it's amazing how for a very short period of time, Xray(and other lasers) can demagnetize a ferromagnets. This is still under research, but how can this be? Can anyone share what they know about this? Do you all think this is an effective method? Could it be more...
  49. B

    Does using the em field generated by flowing elctricity cause V drop?

    I was wondering if you were to use the em field caused by electricity flowing through a wire or coil to push a magnetic or object would you effect the flow of power in the line. Like if you were to wrap a one phase of transmission lines around a solenoid type device to use the em field to push...
  50. F

    Does the environment cause wave function collapse

    I came across this statement by bhobba in another thread and it got me to thinking, if the "environment" itself is capable of collapsing the wave function, then how is it possible to produce an interference pattern in a double slit experiment? After all, the particle isn't traveling through a...
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